/*
   * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License as published by the Free
   * Software Foundation; either version 2 of the License, or (at your option)
   * any later version.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc., 59
   * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
   *
   * The full GNU General Public License is included in this distribution in the
   * file called COPYING.
   */

  #ifndef DCA_H
  #define DCA_H

  
  #include <linux/pci.h>

  /* DCA Provider API */
  
  /* DCA Notifier Interface */
  void dca_register_notify(struct notifier_block *nb);
  void dca_unregister_notify(struct notifier_block *nb);
  
  #define DCA_PROVIDER_ADD     0x0001
  #define DCA_PROVIDER_REMOVE  0x0002
  
  struct dca_provider {

  	struct list_head	node;

  	struct dca_ops		*ops;

  	struct device 		*cd;

  	int			 id;
  };

  struct dca_domain {
  	struct list_head	node;
  	struct list_head	dca_providers;
  	struct pci_bus		*pci_rc;
  };

  struct dca_ops {
  	int	(*add_requester)    (struct dca_provider *, struct device *);
  	int	(*remove_requester) (struct dca_provider *, struct device *);

  	u8	(*get_tag)	    (struct dca_provider *, struct device *,
  				     int cpu);
  	int	(*dev_managed)      (struct dca_provider *, struct device *);

  };
  
  struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size);
  void free_dca_provider(struct dca_provider *dca);
  int register_dca_provider(struct dca_provider *dca, struct device *dev);

  void unregister_dca_provider(struct dca_provider *dca, struct device *dev);

  
  static inline void *dca_priv(struct dca_provider *dca)
  {
  	return (void *)dca + sizeof(struct dca_provider);
  }
  
  /* Requester API */

  #define DCA_GET_TAG_TWO_ARGS

  int dca_add_requester(struct device *dev);
  int dca_remove_requester(struct device *dev);
  u8 dca_get_tag(int cpu);

  u8 dca3_get_tag(struct device *dev, int cpu);

  
  /* internal stuff */
  int __init dca_sysfs_init(void);
  void __exit dca_sysfs_exit(void);
  int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev);
  void dca_sysfs_remove_provider(struct dca_provider *dca);
  int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot);
  void dca_sysfs_remove_req(struct dca_provider *dca, int slot);
  
  #endif /* DCA_H */